While their proxy boosters are very novel (as far as I know they and PrintingProxies are the only ones that do this), I would say they are best known for their ability to print and ship out any large list of cards you want, on demand
If Lathril deals 2 damage, Marwyn, the Nurterer and Elvish Archdruid now add 2 more mana
Its not flashy, but it does enough little things to be a dependable role-player that keeps your game plan on track
They also showed up in Lord of the Rings Collector Boosters as extended-art variants: Five rares new to Volume 2 arrive in November 2023, and theyre available as extended-art variants in the Special Edition Collector Boosters: Set Mechanics No new set mechanics arrive with the ten new cards, but the four key set mechanics from the main set release, The Ring Tempts You, food, amass orcs, and landcycling, return
Number 5 This is like a Black Luminate Primordial, except your opponent won't get any life - you get it instead